DIVERSITY OF CARPS IN RIVER CHENAB, PAKISTAN INTRODUCTION
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1 Punjab Univ. J. Zool., Vol. 26(2), pp , 2011 DIVERSITY OF CARPS IN RIVER CHENAB, PAKISTAN MUHAMMAD ALTAF, ABDUL MAJID KHAN, MUHAMMAD UMAIR AND SOHAIL ARIF CHATTHA Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore (MA, SAC), Department of Zoology, University of the Punjab, Lahore (AMK), Department of Botany, University of the Gujrat, Gujrat (MU), Pakistan. Abstract: In order to estimate the diversity of fresh water fish fauna of Pakistan numerous studies have been undertaken. The data presented in this paper was collected at Head Qadirabad and Head Khanki situated at River Chenab, from The data collected in the present study have revealed that the population of carps is decreasing gradually in river Chenab. The Shannon-Weiner Diversity Indices (H') for carps was calculated and presented in this paper. Key words: Fresh water, fish fauna, Qadirabad, Khanki, Threats. INTRODUCTION River Chenab is an important wetland which is providing refuge to a variety of fishes, migratory and resident birds, amphibians, reptiles and mammals. One of the best known functions of wetlands was to provide a habitat for wildlife and fish. Unsustainable use of the most important natural resource like water has contributed to the decline of both quality and quantity of wetlands particularly in Pakistan and all over the globe in general. Hence, it is imperative to focus on the preservation, conservation and restoration of these endangered habitats to support continuity of life on earth through sustainability of the biological and ecological resources. Pakistan has many of the world s significant climatic and vegetation zones. Extensive water management programs were initiated to ensure regular supply of water for agriculture and household consumption after independence of Pakistan in In this regard three water storage reservoirs, sixteen barrages, twelve interlink canals, two siphons and forty /011/ $ 03.00/0 Copyright 2011, Dept. Zool., P.U., Lahore, Pakistan
2 106 M. ALTAF ET AL. three main channels were built to prosper the agro based economy of the country by IUCN (1989). As regards the diversity of freshwater fish fauna of Pakistan various efforts have been undertaken by Butt and Nawaz, 1978; Butt and Mirza, 1981; Day, 1887; Mirza, 1990; Akhtar, 1992; Mirza, 1993 and Mirza, 1994 Mirza, Sharma (1989) have reported twenty eight species of snow trout in the Himalayan and sub-himalayan regions observed including China and Pakistan. Menon (1954) observed the distribution of Himalayan fish. Sehgal (1988) have observed the diversity of mahseer in Jhelum, Beas, Sutlej and Yamuna rivers. Extensive damming on river Chenab by Indian authorities in the upstream areas has decreased the flow of water downstream in the territorial jurisdiction of Pakistan. The decreasing amount of water may result in declining the overall fish diversity including economically important carps. The present study has been undertaken to investigate the status of carps in the river stretch starting from Qadirabad downstream to the Head Khanki situated at the river Chenab. MATERIALS AND METHODS Study area River Chenab Situated in India and Pakistan, The data was collected at the two important sites; Head Qadirabad (32 о 19'04 N, 073 о 41'36 E and elevation is 210 M) and Head Khanki (32 о 24'07 N, 073 о 58'39 E, elevation 219 M) at river Chenab. The data was collected in 3 successive years ( ). Climate Climate of this area regarded as subtropical with seasonal variation of day length and temperature. Summer temperature remains as high as 45 o C and in winter as low as 5 o C. Water Quality Quality of water was slightly different at two sites, Head Qadirabad (ph ) and Head Khanki (ph ).
3 INDIAN AND CHINESE CARPS OF RIVER CHENAB, PAKISTAN 107 Sampling Direct physical counts by netting, group questionnaire survey (indirect observations) and meetings with the fisherman (indirect observations). For identification of the collected fish A key to fishes of the Punjab (Mirza and Sharif, 2003) was followed. Statistical Analysis The diversity of fish fauna was analyzed through Shannon-Weaver, (1963) indices. The higher value of diversity index indicates the variability in the type of species and heterogeneity in the community where as the lesser values point to the homogeneity in the community. Shannon-Weiner Diversity Index is denoted by H'. H' = -[ΣP І In P І ] The Species richness was calculated by Margalef s (1958) richness index (R) given as: R= S-1/LogN Species evenness was measured using evenness index (E) given by Hill (1973). E= H'/ln(S) Where, P І = proportion of the species relative to the total number of species In P І = natural logarithm of this proportion S= total number of species N= total number of individual RESULTS AND DISCUSSION At Head Qadirabad during study period Shannon-Weiner Diversity Index (H') remained as, for 2007; 1.36 for 2008 and for 2009 as shown in Figure 1 and Table I. The evenness (E) was calculated as for 2007; for 2008 and for 2009 as shown in Table III and
4 108 M. ALTAF ET AL. Figure 2. The Richness remained as for 2007; for 2008 and for 2009 as shown in Table III and Figure 3. At Head Khanki the Shannon-Weiner Diversity Index (H') remained as, for 2007; for 2008 and for 2009 as shown in Figure 1 and Table II, while Evenness (E) was calculated as for 2007; 0.63 for 2008 and for 2009 as shown in Table IV and Figure 2. The richness remained as for 2007; for 2008 and for 2009 as shown in Table III and Figure Years Head Qadirabad Head Khanki Figure 1. Carp diversity at Qadirabad and Khanki Heads in river Chenab. Table I: Summery of carps data at Head Qadirabad Head Qadirabad Scientific Name R.A. PilogPi R.A PilogPi RA PilogPi Labeo rohita Cirrhinus mrigala Gibelion catla Cyprinus Carpio Ctenopharyngodon idella Hypophthalmichthys molitrics
5 INDIAN AND CHINESE CARPS OF RIVER CHENAB, PAKISTAN 109 Species Evenness Evenness of Head Qadirabad and Khanki Years Head Qadirabad head Khanki Figure 2. Carps Evenness at at Qadirabad and Khanki Heads in river Chenab. Species Richness Richness of Head Qadirabad and Khanki Years Head Qadirabad head Khanki Figure 3. Species richness at at Qadirabad and Khanki Heads in river Chenab.
6 110 M. ALTAF ET AL. Table II: Summery of carps data at Head Khanki Head Khanki Scientific Name R.A. PilogPi R.A. PilogPi R.A. PilogPi Labeo rohita Cirrhinus mrigala Gibelion catla Cyprinus Carpio Ctenopharyngodon idella Hypophthalmichthys molitrics Table III: Diversity and Evenness at Head Qadirabad river Chenab Head Qadirabad Diversity (H ) Evenness (E) Richness Table IV: Diversity and Evenness of Head Khanki Head Khanki Diversity (H ) Evenness (E) Richness The results of the present study shows that freshwater fish fauna of the study sites is decreasing in terms of diversity indices. The carps are the major victim because of their economic and food value. The population of carps is gradually decreasing due to destruction of nesting and hatching sites and excessive hunting. Increasing toxicity due to fertilizers, pesticides in agro-forest land, gradual decrease in water level due to drought and
7 INDIAN AND CHINESE CARPS OF RIVER CHENAB, PAKISTAN 111 damming, illegal fishing, ineffective and redundant fish-ladders, and natural as well as anthropogenic destruction of feeding, breeding and nesting grounds are the major factors that contribute in the rapidly decreasing populations of the fish. The modifications of aquatic habitats by the exotic invasive species especially Cyprinus carpio and Oreochromis species are also negatively influencing the native fish populations of carps. REFERENCES AKHTAR, N., Pakistan s cold water fisheries and trout farming sector study: trends, opportunities and challenges. Report for FAO/UNDP Projects PAK/88/048 and PAK/91/008, FAO, Rome. BUTT, J.A. AND NAWAZ, M., Fishes of Dera Ismail Khan, NWFP. Biologia (Pakistan), 24: BUTT, J.A. AND MIRZA M.R., Fishes of Vale of Peshawar NWFP. Biologia (Pakistan), 27: COAD, D., Fishes of Afghanistan: an annotated check-list, publications in Zoology, No. 14 National Museum of Canada, Ottawa. pp. 26. DAY F Geographical distribution of Indian freshwater fishes. I-III. J. Linn. Soc. (Zool.), 13: DUBEY, G.P., Survey of the waters of Bhutan. Physiography and fisheries potential. Report. FAO, Rome, pp. 38 EDWARDS, D., Coldwater fish culture in Azad Kashmir and in Northern areas. Mission Report for FAO/UNDP Projects PAK/88/048 and PAK/91/008. FAO, Rome, pp.31 GEORGE, W., Review of fishery management in Water and Power Development Authority (WAPDA) reservoirs in Pakistan. FAO Fisheries Report. No. 512 (Suppl.): FAO, Rome. HILL, M.O., Diversity and its evenness, a unifying notation and its consequences. Ecology, 54: IUCN, Pakistan Fact Sheet Water. Journalist Resource Centre for the Environment, IUCN Pakistan. MARGELF, R., Temporal succession and spatial heterogeneity in phytoplankton. In: Perspective in Marine Biology (ed. A.A. Buzzati-Traverso), University of California Press. Berkeley, California, USA, pp
8 112 M. ALTAF ET AL. MENON, A.G.K., A distributional list of fishes of the Himalayas. J. Zool. Soc. India, 14(1-2): MIRZA, M.R., Distribution of freshwater fishes in Pakistan and AJK. Proc. Sec. Aqua. Dev. Pakistan, pp MIRZA, M.R., Geographical distribution of freshwater fishes in Pakistan: A review. Punjab Univ. J. Zool., 9: MIRZA, M.R., Cheklist of freshwater fishes of Pakistan. Pakistan J. Zool. (Supp. Ser.), 3: MIRZA, M.R. AND SHARIF, H.M., A key to fishes of the Punjab. Ilmi kitab Khana (Pakistan), pp. 32. MIRZA, M.R., Freshwater fishes of Pakistan. Urdu Science Board, Lahore, Pakistan, pp PETR, T., Feasibility study on fisheries development in the major Pakistan reservoirs. Report for the Project FI/TCP/PAK/4506. Field Document 1. FAO, Rome, p. 63. PRADHAN, B.R. AND SWAR, D.B., Limnology and fishery potential of the Indrasarobar at Kulekhani, Nepal. In: Reservoir Fishery Management and Development in Asia. Proc. Workshop, Kathmandu, Nepal, November 1987: SEHGAL, K.L., The Ecology and Fisheries of Mountain Streams of N.W. Himalayas. D. Sc. Thesis, Meerut University. SEHGAL, K.L., Coldwater fish and fisheries in the Himalayas: rivers and streams. FAO Fisheries Technical Paper. No. 385: 41-63, FAO, Rome. SHANNON, C.E. AND WEAVER, W., The Mathematical Theory of Communication. University of Illinois Press, Urbana. pp SHARMA, B.P., Status of Schizothorax sp. in the Indian-Chinese sub-continent. FAO Fisheries Report. No. 405 (Suppl.): FAO, Rome. SHRESTHA, J., Coldwater fish and fisheries in Nepal. FAO Fisheries Technical Paper. No.385: FAO, Rome. (Received: July 21, 2011; Revised: September 03, 2011)
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